Install and configure for Ubuntu¶

This section describes how to install and configure the Infrastructure Optimization service for Ubuntu 16.04 (LTS).

Prerequisites¶

Before you install and configure the Infrastructure Optimization service, you must create a database, service credentials, and API endpoints.

Create the database, complete these steps:
- Use the database access client to connect to the database server as the root user:
```
# mysql
```
- Create the watcher database:
```
CREATE DATABASE watcher CHARACTER SET utf8;
```
- Grant proper access to the watcher database:
```
GRANT ALL PRIVILEGES ON watcher.* TO 'watcher'@'localhost' \
  IDENTIFIED BY 'WATCHER_DBPASS';
GRANT ALL PRIVILEGES ON watcher.* TO 'watcher'@'%' \
  IDENTIFIED BY 'WATCHER_DBPASS';
```
  Replace WATCHER_DBPASS with a suitable password.
- Exit the database access client.
```
exit;
```
Source the admin credentials to gain access to admin-only CLI commands:
```
$ . admin-openrc
```

To create the service credentials, complete these steps:

Create the watcher user:

$ openstack user create --domain default --password-prompt watcher
  User Password:
  Repeat User Password:
  +---------------------+----------------------------------+
  | Field               | Value                            |
  +---------------------+----------------------------------+
  | domain_id           | default                          |
  | enabled             | True                             |
  | id                  | b18ee38e06034b748141beda8fc8bfad |
  | name                | watcher                          |
  | options             | {}                               |
  | password_expires_at | None                             |
  +---------------------+----------------------------------+

Add the admin role to the watcher user:
```
$ openstack role add --project service --user watcher admin
```
Note

This command produces no output.

Create the watcher service entities:

$ openstack service create --name watcher --description "Infrastructure Optimization" infra-optim
  +-------------+----------------------------------+
  | Field       | Value                            |
  +-------------+----------------------------------+
  | description | Infrastructure Optimization      |
  | enabled     | True                             |
  | id          | d854f6fff0a64f77bda8003c8dedfada |
  | name        | watcher                          |
  | type        | infra-optim                      |
  +-------------+----------------------------------+

Create the Infrastructure Optimization service API endpoints:

$ openstack endpoint create --region RegionOne \
  infra-optim public http://controller:9322
  +-------------+----------------------------------+
  | Field       | Value                            |
  +-------------+----------------------------------+
  | description | Infrastructure Optimization      |
  | enabled     | True                             |
  | id          | d854f6fff0a64f77bda8003c8dedfada |
  | name        | watcher                          |
  | type        | infra-optim                      |
  +-------------+----------------------------------+

$ openstack endpoint create --region RegionOne \
  infra-optim internal http://controller:9322
  +--------------+----------------------------------+
  | Field        | Value                            |
  +--------------+----------------------------------+
  | enabled      | True                             |
  | id           | 225aef8465ef4df48a341aaaf2b0a390 |
  | interface    | internal                         |
  | region       | RegionOne                        |
  | region_id    | RegionOne                        |
  | service_id   | d854f6fff0a64f77bda8003c8dedfada |
  | service_name | watcher                          |
  | service_type | infra-optim                      |
  | url          | http://controller:9322           |
  +--------------+----------------------------------+

$ openstack endpoint create --region RegionOne \
  infra-optim admin http://controller:9322
  +--------------+----------------------------------+
  | Field        | Value                            |
  +--------------+----------------------------------+
  | enabled      | True                             |
  | id           | 375eb5057fb546edbdf3ee4866179672 |
  | interface    | admin                            |
  | region       | RegionOne                        |
  | region_id    | RegionOne                        |
  | service_id   | d854f6fff0a64f77bda8003c8dedfada |
  | service_name | watcher                          |
  | service_type | infra-optim                      |
  | url          | http://controller:9322           |
  +--------------+----------------------------------+

Install and configure components¶

Install the packages:

# apt install watcher-api watcher-decision-engine \
  watcher-applier

# apt install python-watcherclient

Edit the /etc/watcher/watcher.conf file and complete the following actions:
- In the [database] section, configure database access:
```
[database]
...
connection = mysql+pymysql://watcher:WATCHER_DBPASS@controller/watcher?charset=utf8
```
- In the [DEFAULT] section, configure the transport url for RabbitMQ message broker.
```
[DEFAULT]
...
control_exchange = watcher
transport_url = rabbit://openstack:RABBIT_PASS@controller
```
  Replace the RABBIT_PASS with the password you chose for OpenStack user in RabbitMQ.
- In the [keystone_authtoken] section, configure Identity service access.
```
[keystone_authtoken]
...
www_authenticate_uri = http://controller:5000
auth_url = http://controller:5000
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = watcher
password = WATCHER_PASS
```
  Replace WATCHER_PASS with the password you chose for the watcher user in the Identity service.
- Watcher interacts with other OpenStack projects via project clients, in order to instantiate these clients, Watcher requests new session from Identity service. In the [watcher_clients_auth] section, configure the identity service access to interact with other OpenStack project clients.
```
[watcher_clients_auth]
...
auth_type = password
auth_url = http://controller:5000
username = watcher
password = WATCHER_PASS
project_domain_name = default
user_domain_name = default
project_name = service
```
  Replace WATCHER_PASS with the password you chose for the watcher user in the Identity service.
- In the [api] section, configure host option.
```
[api]
...
host = controller
```
  Replace controller with the IP address of the management network interface on your controller node, typically 10.0.0.11 for the first node in the example architecture.
- In the [oslo_messaging_notifications] section, configure the messaging driver.
```
[oslo_messaging_notifications]
...
driver = messagingv2
```

Populate watcher database:

su -s /bin/sh -c "watcher-db-manage --config-file /etc/watcher/watcher.conf upgrade"

Finalize installation¶

Start the Infrastructure Optimization services and configure them to start when the system boots:

# systemctl enable watcher-api.service \
  watcher-decision-engine.service \
  watcher-applier.service

# systemctl start watcher-api.service \
  watcher-decision-engine.service \
  watcher-applier.service

Install and configure for Ubuntu

Install and configure for Ubuntu¶

Prerequisites¶

Install and configure components¶

Finalize installation¶

Watcher 13.1.0.dev26

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